The Huanuo Vesa Adapter Model HNMUA5 is a 4-piece set of adaptor brackets for attaching to the mounting plate. They are designed to allow for easy mounting for monitor support. Hardware for attaching these adaptors to the mounting plate is included. NOTE: The mounting plate is NOT included. Made by the brand Huanuo, these black adapter brackets, along with the mounting plate are designed to securely hold your monitor in place. Manufactured in China